MANUAL Location - Area: Francia , magnitude (ML): 0.7
2021-02-25 01:06:07 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-02-25 07:38:12

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Earthquake info - Manual location
Event - ID :210225010541
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2021-02-25 01:06:07.556 (UTC)
Location : Latitude: 44.138 N, Longitude: 6.978 E
Area :Francia
Depth (km) :9.97
Distances (km) : 23.4 --- Pietraporzio
23.7 --- Sambuco
24.7 --- Vinadio
27.5 --- Aisone
29.0 --- Argentera
32.2 --- Demonte
35.4 --- Entracque
35.5 --- Castelmagno
36.5 --- Canosio
36.8 --- Valdieri
36.9 --- Marmora
37.6 --- Acceglio
38.6 --- Moiola
38.7 --- Valloriate
39.0 --- Prazzo
39.5 --- Pradleves
40.6 --- Gaiola
40.8 --- Roaschia
40.8 --- Monterosso Grana
41.1 --- Rittana

Quality location estimate: Erh: 1.3 km, Erz: 1.3 km, Nf: 32, Gap: 189 °, Rms: 0.24


Manual location results
Station Net P arrival time P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
ISOFR2021-02-25 01:06:10.7300.00500.310.672021-02-25 01:06:12.4300.0400-0.001.9013.3
MVIFFR2021-02-25 01:06:14.0000.0221-0.001.882021-02-25 01:06:18.1400.0922-0.720.1731.8
STVGU2021-02-25 01:06:14.1900.01500.540.632021-02-25 01:06:18.4040.10430.610.5632.1
ENRGU2021-02-25 01:06:15.2500.04220.510.662021-02-25 01:06:19.6800.11830.031.4938.2
TURFFR2021-02-25 01:06:15.1660.0200-0.011.832021-02-25 01:06:20.5400.1173-0.220.9539.0
SURFFR2021-02-25 01:06:15.5700.0231-0.031.772021-02-25 01:06:21.2500.12830.021.4341.5
PZZGU2021-02-25 01:06:16.2000.02410.011.802021-02-25 01:06:22.1660.24860.001.1844.0
ESCAFR2021-02-25 01:06:16.8660.02000.161.312021-02-25 01:06:22.9890.1002-0.250.8747.9
SAOFFR2021-02-25 01:06:17.4560.02000.131.452021-02-25 01:06:23.6110.1002-0.600.2850.0
MONFR2021-02-25 01:06:20.0850.02001.710.012021-02-25 01:06:26.8850.04000.870.2758.5
GBOSGU2021-02-25 01:06:20.6350.02000.430.752021-02-25 01:06:28.6170.0400-0.141.1470.5
IMIGU2021-02-25 01:06:21.5930.0401-0.001.552021-02-25 01:06:31.0370.1002-0.370.6778.1
BHBGU2021-02-25 01:06:21.9600.03910.071.532021-02-25 01:06:32.6580.04000.920.2781.4
ROROGU2021-02-25 01:06:23.1550.02000.181.282021-02-25 01:06:34.6820.10021.130.1687.5
RRLGU2021-02-25 01:06:23.5840.0200-0.081.362021-02-25 01:06:35.0320.04000.171.1889.1
RSPGU2021-02-25 01:06:27.9500.05520.570.632021-02-25 01:06:40.4300.6529-0.800.39115.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ISO FRHH0.421.45e-113.348
STV GUHH0.431.98e-232.167
ENR GUHH0.675.09e-238.274
PZZ GUHH0.543.50e-244.015
SAOF FRHH0.511.47e-250.0110
GBOS GUHH1.091.41e-270.580
IMI GUHH1.032.56e-278.1109
BHB GUHH0.758.22e-381.416
RRL GUHH0.805.53e-389.1350
RSP GUHH1.007.57e-3115.111


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
IH 0*
(m)
IH 1*
(m)
IH 2*
(m)
Sa(T=0.10)
(g)
Sa(T=0.30)
(g)
Sa(T=1.00)
(g)
Sa(T=3.00)
(g)
Dist.
(km)
Azim.
(°)
ISO FRHHZ1.0342e-52.2170e-61.1102e-64.9311e-72.3409e-72.1981e-54.0597e-63.5168e-76.0020e-813.348
ISO FRHHN9.7239e-62.4812e-61.2063e-64.0215e-72.3437e-72.7224e-55.1920e-63.5948e-76.3656e-813.348
ISO FRHHE8.8007e-62.0488e-69.8548e-72.7662e-71.6463e-72.3456e-54.4536e-62.7026e-75.1456e-813.348
STV GUHHZ1.0284e-62.1044e-71.7171e-78.3698e-84.1519e-82.4766e-61.0395e-65.8593e-87.8150e-932.167
STV GUHHN1.1004e-62.5064e-71.6030e-76.9708e-83.1913e-83.0248e-67.2611e-74.7730e-86.9172e-932.167
STV GUHHE9.3219e-71.6570e-71.2459e-75.1416e-82.8879e-83.3462e-65.3535e-75.0391e-84.9810e-932.167
ENR GUHHZ2.0416e-63.1745e-71.9847e-74.2870e-82.8451e-85.4243e-61.0403e-64.6721e-88.7600e-938.274
ENR GUHHN6.4945e-66.6691e-73.8803e-71.3094e-76.3182e-81.0195e-51.9897e-61.0406e-71.7148e-838.274
ENR GUHHE6.5559e-67.2610e-73.5071e-71.0655e-75.6475e-89.0446e-61.2869e-68.3119e-81.5605e-838.274
PZZ GUHHZ1.9817e-63.3163e-72.4151e-78.4996e-83.8052e-86.7138e-61.0302e-65.2971e-88.9008e-944.015
PZZ GUHHN2.3144e-63.5701e-72.3671e-71.0873e-74.1043e-87.1224e-61.0188e-65.9886e-89.4486e-944.015
PZZ GUHHE2.7642e-65.7390e-73.0911e-79.7259e-84.9731e-89.7090e-61.2812e-67.9869e-81.4248e-844.015
SAOF FRHHZ3.7220e-71.3150e-71.3211e-71.0095e-73.2855e-81.1181e-66.8928e-74.0680e-84.5039e-950.0110
SAOF FRHHN5.8102e-71.6346e-71.0621e-75.8330e-82.1783e-81.7519e-65.0897e-73.0139e-84.0354e-950.0110
SAOF FRHHE6.7138e-71.1373e-71.1265e-74.5928e-81.8937e-82.3147e-66.0807e-72.5210e-83.0642e-950.0110
GBOS GUHHZ8.4326e-71.6160e-71.0804e-72.7285e-81.4846e-83.1153e-64.4575e-72.5822e-84.0542e-970.580
GBOS GUHHN6.6025e-71.6940e-71.2207e-75.0254e-82.0721e-81.7937e-64.5533e-72.7006e-84.3325e-970.580
GBOS GUHHE8.6959e-71.7926e-71.2779e-73.4107e-81.5556e-83.1880e-66.5102e-72.3470e-84.0397e-970.580
IMI GUHHZ9.8899e-72.1934e-71.3925e-74.6003e-82.3169e-83.1694e-65.6523e-73.2845e-84.9929e-978.1109
IMI GUHHN1.2315e-63.2982e-72.1757e-78.5599e-83.7329e-83.4043e-69.8272e-75.3583e-89.4445e-978.1109
IMI GUHHE1.4669e-62.6046e-71.8129e-75.5795e-82.6291e-84.0746e-68.3459e-74.0899e-86.1779e-978.1109
BHB GUHHZ6.7179e-71.1113e-77.1489e-83.3646e-82.4243e-82.6259e-62.2916e-74.1905e-82.8860e-981.416
BHB GUHHN5.4611e-71.0090e-77.4939e-82.6589e-82.0421e-82.1755e-63.1458e-74.0679e-82.7891e-981.416
BHB GUHHE4.3359e-78.4296e-86.7513e-82.2960e-82.1797e-81.1184e-62.4972e-74.4345e-82.7852e-981.416
RORO GUHHZ3.6754e-77.5529e-86.5692e-82.2208e-89.3932e-91.6229e-63.3820e-71.5055e-82.1993e-987.591
RORO GUHHN3.1793e-77.0845e-84.6294e-81.5735e-87.2425e-99.4763e-71.7797e-71.0057e-82.0332e-987.591
RORO GUHHE1.7418e-63.0079e-72.5246e-72.9367e-71.9341e-71.7074e-61.2701e-62.7341e-71.5663e-887.591
RRL GUHHZ1.9243e-73.3220e-83.2754e-81.5264e-86.8071e-96.1488e-71.8482e-71.2551e-81.0828e-989.1350
RRL GUHHN4.4846e-78.1978e-85.6441e-81.8640e-81.1771e-81.0868e-62.4011e-71.6161e-81.8079e-989.1350
RRL GUHHE2.6159e-75.5145e-86.0050e-82.1609e-88.0702e-99.1180e-73.4053e-71.0030e-81.6916e-989.1350
RSP GUHHZ4.2062e-77.4038e-84.5774e-81.9093e-88.2214e-91.0808e-61.8059e-71.1516e-81.6437e-9115.111
RSP GUHHN3.4088e-75.8724e-85.3634e-81.8757e-81.0216e-89.6711e-72.4512e-71.3719e-81.6026e-9115.111
RSP GUHHE3.9049e-77.3075e-85.9657e-82.4861e-82.8177e-81.1509e-63.0275e-74.8317e-83.9659e-9115.111
*IH (Housner Intensity) calculated on the velocity spectrum (SV) between 0.1 and 0.5 s (IH0), 0.1 and 1.0 s (IH1), 0.1 and 1.5 s (IH2)

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